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Target intelligence / Profile preview
Proto-oncogene protein c-bcl2 (Bcl-2)
- Target
- Bcl-2
- Molecular classification
- Apoptosis regulator, Proto-oncogene, Membrane protein
01
Overview
Proto-oncogene protein c-bcl2 (Bcl-2) is a key anti-apoptotic protein that promotes cell survival by inhibiting programmed cell death. It primarily localizes to the outer mitochondrial membrane, endoplasmic reticulum, and nuclear envelope. By blocking the activation of pro-apoptotic proteins like Bax and Bak, Bcl-2 prevents mitochondrial outer membrane permeabilization and subsequent caspase activation. Overexpression or dysregulation of Bcl-2 is frequently observed in various cancers, contributing to tumorigenesis and resistance to chemotherapy. As a result, Bcl-2 has become an important therapeutic target with small molecule inhibitors being developed to restore apoptotic sensitivity in cancer cells.
- Other names
- B cell lymphoma 2 protein
02
Mechanism of action
Small molecule inhibitors designed to disrupt Bcl-2's anti-apoptotic function, allowing apoptosis to proceed
03
Biological functions
Inhibition of apoptosisCell survivalRegulation of calcium ion flowModulation of oxidative stress
04
Disease associations
Cancer (various types, e.g., lymphomas, breast cancer)Tumorigenesis
05
Safety considerations
Resistance to chemotherapeutic agentsPotential for off-target effects due to Bcl-2 family interactions
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